Stoichiometry
What does a coefficient mean in stoichiometry?
The coefficient can mean the amount of moles in a balanced equation.
What are chemical bonds?
Chemical Bonds are forces that hold groups of atoms together and make them function as a unit.
What are some properties of metals?
Shiny, reactive, malleable, good conductor
What is a chemical reaction?
A process involving one or more substances changing into a new substance.
What is a mole?
Is the SI base unit used to measure the amount of a substance.
What is stoichiometry about?
Stoichiometry is about measuring the amounts of elements and compounds involved in a reaction.
What are the two exceptions to the Octet Rules?
Hydrogen and Helium
Which is the most stable group ?
Noble Gases
What does this (s) mean?
Identifies a solid state
What is this number ‘ 6.0221367 x 1023’ called?
Avogadro’s number
How many steps are there in mass to mass stoichiometry?
3 steps.
With which molecule do you have add prefixes ?
Covalent molecules
What is the definition for ionization energy ?
The energy needed to remove an electron from an atom.
What is a chemical equation?
A statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction.
What is molar mass ?
The mass in grams of one mole of any pure substance.
How do you tell apart your given from your unknown?
Your given is the substance that you are given the value for. The unknown is the substance you are trying to find the value for.
What are the steps to drawing electron dot diagrams?
1. Write out the chemical symbol
2. Find the number of valence electron
3. Draw the valence electrons around the chemical symbol
What unit is used to measure ionization energy?
Kilojoules per mole (kJ/mol)
What is a synthesis reaction?
A chemical reaction in which two or more substances react to produce a single product.
What is the equation for percent composition?
(Part/Whole) x 100
What does the term “stochio“ mean?
Greek for element
What are the two types of covalent bonds?
Nonpolar covalent bonds and polar covalent bonds
What is the name of the man known as the ‘father of the Periodic Table‘ ?
Dmitri Mendeleev
What is a combustion reaction?
A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light.
What is a empirical formula?
A formula that shows the smallest whole-number mole ratio of the elements of a compound, and might or might not be the same as the actual molecular formula.